公开(公告)号：US20210075434A1

公开(公告)日：2021-03-11

申请号：US16563083

申请日：2019-09-06

Applicant: QUALCOMM Incorporated

Inventor： Debesh BHATTA ,  Kevin Jia-Nong WANG ,  Karthik NAGARAJAN ,  John ABCARIUS ,  Andrew WEIL ,  Christian VENERUS ,  Jeffrey Mark HINRICHS

IPC: H03M1/06 ,  H03M1/70 ,  H03C3/09

Abstract: Certain aspects of the present disclosure provide apparatus and techniques for digital-to-analog conversion. One example apparatus generally includes a first digital-to-analog converter (DAC) having an input coupled to a digital input node of the apparatus, a second DAC, a digital processor coupled between the digital input node and an input of the second DAC, and a combiner coupled to the first DAC and the second DAC.

公开(公告)号：US20160336924A1

公开(公告)日：2016-11-17

申请号：US14711158

申请日：2015-05-13

Applicant: QUALCOMM Incorporated

Inventor： Xinxin YU ,  Ashok SWAMINATHAN ,  Christian VENERUS

IPC: H03K3/03

CPC classification number: H03K3/0315 ,  H03K3/011 ,  H03L7/0995 ,  H03L7/0997

Abstract: A method and apparatus for controlling a supply sensitivity of a ring oscillator stage are provided. The apparatus is configured to generate, via a voltage biasing module, a first bias signal for a PMOS biasing module based on a supply voltage and a second bias signal for a NMOS biasing module based on the supply voltage, bias, via the PMOS biasing module, triode PMOS degeneration of the inverting module based on the first bias signal, bias, via the NMOS biasing module, triode NMOS degeneration of the inverting module based on the second bias signal, receive an input via an inverting module, and output, via the inverting module, an inverted version of the received input based on the biased triode NMOS degeneration and the biased triode PMOS degeneration.

Abstract translation: 提供了一种用于控制环形振荡器级的供电灵敏度的方法和装置。 该装置被配置为经由电压偏压模块经由PMOS偏压模块基于供电电压和偏压，基于供电电压和用于NMOS偏置模块的第二偏置信号，经由电压偏压模块产生第一偏置信号 基于第一偏置信号的反相模块的三极管PMOS退化，经由NMOS偏置模块的偏置，基于第二偏置信号的反相模块的三极管NMOS退化，经由反相模块接收输入，并且经由反相模块输出 反相模块，基于偏置三极管NMOS退化和偏置三极管PMOS退化的接收输入的反相形式。